Divided last



March 11 1924.

o. A. PETERSON DIVIDED LAST Filed July 27 1922 Inmzntor: Olro A Palerson Patented Mar. 11, 1924. v v

o'r'ro A. PETERSON, or s'rouenron, MASSACHUSETTS.

nIvInnn LAST.

Application filed July 27, 1922. Serial No. 577,915.

To all-whom it may concern: tioned a plug 10 which may be of any Be it known that I, OTTO A. PETERSON, suitable material. The plug 10 is normally a citizen of the United States, residing at held extended as shown in Fig. 1 by a Stoughton, county of Norfolk, Commonspring 11.

wealth of Massachusetts, have invented cer- The bore in the fore part is so disposed to tain new and useful Improvements in Di- .vith reference to the secant face 3 as to vided Lasts. of which the following is a have the plug lie with its rounded end specification. 10 slightly over-riding the secant face at My present invention relates to certain the opposite end when the last is extended.

10 developments in lasts particularly two part This tends to lock the heel part 2 firmly e5 lasts having a central bearing joint. These in extended position and to resist any collasts are usually pivotally connected at this lapsing motion. lVhen it is desired to coljoint or hearing so that the parts can turn lapse the last the plug 10 is slightly rcrelatively on each other and so that the t'acted to clear the edge of the secant face last can be collapsed for removal from the 3 whereupon the concaved surface 9 of the shoe. heel part rides over the plug forcing it book.

These lasts are usually formed in the up- Then the heel part on the way to its per part of their central division with what upper position as shown in Fig. 2, the end is usually termed a V-shaped cut leaving 10 of the plug will be slightly under the 2 secant faces. These faces are separated upper edge of the concavity 9 and thus when the last is extended, but approach or tend to keep the heel part in elevated posicontact when the last is collapsed. It is tion.

desired to maintain the last in extended The plug 10 is preferably set slightly to position with an excess of resistance and one side of the central line of the last and also it is desirable that when the last is the link 6 preferably works in aligned so collapsed it be at least lightly held against kerfs in the fore part and heel part. The free motion. link may be of any desired shape but con- In my present invention I provide for veniently may be my usual arched resilient these features by a simple construction link of my previous Letters Patent No.

39 which I have shown in the accompanying 1,195,266. 35 drawings and which will be more fully ex- Various modifications may be made in the plained in the specification as follows. details of structure and (lesi n all without Throughout the specification and drawings departing from the spirit of my invention like reference characters are employed toif within the limits of the appended claims.

35 indicate corresponding parts, and in the \Vhat I therefore claim and desire to s-edrawings: cure by Letters Patent is Fig. 1 is a partly sectioned side elevation 1. In a divided last. a fore part and a of a last in extended position. heel part having a central knuckle joint Fig. 2 a similar view of the last in colcomprising a convex member on one part 40 lapsed position, and and a concave member on the other part. 96

Fig. 3 a plan view looking down on the a spring pressed follower having a rounded top of the last. head disposed in a longitudinal bore in the In the drawings 1 have illustrated at 1 convex part adjacent its intersection with a fore part and at 2 a heel part linked tothe secant face and adapted to project nether on a center pin 5 by a link 6 which against the opposite secant face of the cut is also pinned to the heel part as at 7. The of the other part when the last is in exsec-ant face of the heel part is indicated at tended position and engageabie with the 3 and that of the fore part 1 is indicated concave of the other part of the knuckle at 4 see Fig. 1. In the last shown the when the last is in collapsed position.

50 fore part is provided with a cylindrical 2. In a divided last, a fore part and a knuckle member 8 and the rear part with a heel part having a central knuckle joint corespondinp: concavity 9 which bear on comprising a convex member on one part each other. in the upper part of the cyand a concave member on the other Dart, lindicity 8 and extendingforwardly into a pivotal connecting link uniting the two the fore part is a bore in which is posiparts and having one end pivoted substantially in the knuckle center, the fore part and heel part each having secant faces defining a transverse opening exposing said knuckle, a longitudinal bore intersecting the knuckle in its surface so exposed, a spring pressed follower having a rounded head disposed in said bore on a line 1501" normal contact With the base of the opposite secant face when the last is extended and for Contact with the surface of the 10 CGHCEIYG member-When the last is collapsed.

In testimony whereof I afiix iny signature in presence of two Witnesses.

'OTTO A. PETERSON. \Vitnesses JULIA S. HALL, HAZEL-M. Fo som. 

